CERN Accelerating science

Article
Title	The COMPASS RICH-1 MPGD based photon detector performance
Author(s)	Agarwala, J (ICTP, Trieste ; INFN, Pavia ; Pavia U.) ; Alexeev, M (INFN, Turin) ; Azevedo, C D R (Aveiro U.) ; Bradamante, F (Trieste U. ; INFN, Trieste) ; Bressan, A (Trieste U. ; INFN, Trieste) ; Büchele, M (Freiburg U.) ; Chatterjee, C (Trieste U. ; INFN, Trieste) ; Chiosso, M (INFN, Turin ; Turin U.) ; Cicuttin, A (ICTP, Trieste) ; Ciliberti, P (INFN, Trieste) ; Crespo, M L (ICTP, Trieste) ; D’Ago, D (Trieste U. ; INFN, Trieste) ; Torre, S Dalla (INFN, Trieste) ; Dasgupta, S (INFN, Trieste) ; Denisov, O (INFN, Turin) ; Finger, M (Charles U. ; Dubna, JINR) ; Finger, M (Charles U. ; Dubna, JINR) ; Fischer, H (Freiburg U.) ; Ordóñez, L García (ICTP, Trieste ; Trieste U. ; INFN, Trieste) ; Gregori, M (INFN, Trieste) ; Hamar, G (INFN, Trieste ; Wigner RCP, Budapest) ; Herrmann, F (Freiburg U.) ; Levorato, S (INFN, Trieste ; CERN) ; Martin, A (Trieste U. ; INFN, Trieste) ; Menon, G (INFN, Trieste) ; Panzieri, D (INFN, Turin ; Piemonte Orientale U., Alessandria) ; Sbrizzai, G (Trieste U. ; INFN, Trieste) ; Schopferer, S (Freiburg U.) ; Slunecka, M (Charles U. ; Dubna, JINR) ; Sulc, M (Liberec Tech. U.) ; Tessarotto, F (INFN, Trieste) ; Triloki (Aveiro U.) ; Veloso, J F C A (Aveiro U.) ; Zhao, Y X (INFN, Trieste ; Lanzhou, Inst. Modern Phys.)
Publication	2022
Number of pages	5
In:	J. Phys. : Conf. Ser. 2374 (2022) 012126
In:	International Conference on Technology and Instrumentation in Particle Physics (TIPP 2021), Online, Canada, 24 - 29 May 2021, pp.012126
DOI	10.1088/1742-6596/2374/1/012126
Subject category	Detectors and Experimental Techniques
Accelerator/Facility, Experiment	CERN SPS ; NA58
Abstract	In 2016 we have upgraded the COMPASS RICH by novel gaseous photon detectors based on MPGD technology. Four new photon detectors, covering a total active area of 1.5 m $^{2}$, have been installed in order to cope with the challenging efficiency and stability requirements of the COMPASS physics programme. The new detector architecture consists in a hybrid MPGD combination: two layers of THGEMs, the first of which also acts as a reflective photocathode thanks to CsI coating, are coupled to a bulk Micromegas on a pad-segmented anode. These detectors are the first application in an experiment of MPGD-based single photon detectors. Presently, we are further developing the MPGD-based PDs to make them adequate for a setup at the future EIC collider. All aspects of the COMPASS RICH-1 Photon Detectors upgrade are presented: R&D;, engineering, mass production, QA and performance; the on-going development for collider application is also presented.
Copyright/License	CC-BY-3.0

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